vendor update for E2E framework

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

vendor/k8s.io/cli-runtime/pkg/printers/json.go

@@ -0,0 +1,102 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package printers
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"reflect"
+
+	"k8s.io/apimachinery/pkg/runtime"
+
+	"sigs.k8s.io/yaml"
+)
+
+// JSONPrinter is an implementation of ResourcePrinter which outputs an object as JSON.
+type JSONPrinter struct{}
+
+// PrintObj is an implementation of ResourcePrinter.PrintObj which simply writes the object to the Writer.
+func (p *JSONPrinter) PrintObj(obj runtime.Object, w io.Writer) error {
+	// we use reflect.Indirect here in order to obtain the actual value from a pointer.
+	// we need an actual value in order to retrieve the package path for an object.
+	// using reflect.Indirect indiscriminately is valid here, as all runtime.Objects are supposed to be pointers.
+	if InternalObjectPreventer.IsForbidden(reflect.Indirect(reflect.ValueOf(obj)).Type().PkgPath()) {
+		return fmt.Errorf(InternalObjectPrinterErr)
+	}
+
+	switch obj := obj.(type) {
+	case *runtime.Unknown:
+		var buf bytes.Buffer
+		err := json.Indent(&buf, obj.Raw, "", "    ")
+		if err != nil {
+			return err
+		}
+		buf.WriteRune('\n')
+		_, err = buf.WriteTo(w)
+		return err
+	}
+
+	if obj.GetObjectKind().GroupVersionKind().Empty() {
+		return fmt.Errorf("missing apiVersion or kind; try GetObjectKind().SetGroupVersionKind() if you know the type")
+	}
+
+	data, err := json.MarshalIndent(obj, "", "    ")
+	if err != nil {
+		return err
+	}
+	data = append(data, '\n')
+	_, err = w.Write(data)
+	return err
+}
+
+// YAMLPrinter is an implementation of ResourcePrinter which outputs an object as YAML.
+// The input object is assumed to be in the internal version of an API and is converted
+// to the given version first.
+type YAMLPrinter struct{}
+
+// PrintObj prints the data as YAML.
+func (p *YAMLPrinter) PrintObj(obj runtime.Object, w io.Writer) error {
+	// we use reflect.Indirect here in order to obtain the actual value from a pointer.
+	// we need an actual value in order to retrieve the package path for an object.
+	// using reflect.Indirect indiscriminately is valid here, as all runtime.Objects are supposed to be pointers.
+	if InternalObjectPreventer.IsForbidden(reflect.Indirect(reflect.ValueOf(obj)).Type().PkgPath()) {
+		return fmt.Errorf(InternalObjectPrinterErr)
+	}
+
+	switch obj := obj.(type) {
+	case *runtime.Unknown:
+		data, err := yaml.JSONToYAML(obj.Raw)
+		if err != nil {
+			return err
+		}
+		_, err = w.Write(data)
+		return err
+	}
+
+	if obj.GetObjectKind().GroupVersionKind().Empty() {
+		return fmt.Errorf("missing apiVersion or kind; try GetObjectKind().SetGroupVersionKind() if you know the type")
+	}
+
+	output, err := yaml.Marshal(obj)
+	if err != nil {
+		return err
+	}
+	_, err = fmt.Fprint(w, string(output))
+	return err
+}